A tuning fork produces 4 beats/sec. with another fork of frequency 288 cps. A little wax is placed on the unknown fork and it then produces 2 beats/sec. the unknown frequency is :

A tuning fork produces 4 beats/sec. with another fork of frequency 288

1.	A tuning fork produces 4 beats/sec. with another fork of frequency 288 cps. A little wax is placed on the unknown fork and it then produces 2 beats/sec. the unknown frequency is :
Answer» 286 cps 284 cps 292 cps 290 cps Solution :Unknown frequency `v_(2) = v_(1) PM b = 288 pm 4 = 292 or 284 `Hz. since on loading no. Of beats decreases. `THEREFORE v_(2) = 292 ` Hz. CORRECT choice is (c).

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A tuning fork produces 4 beats/sec. with another fork of frequency 288 cps. A little wax is placed on the unknown fork and it then produces 2 beats/sec. the unknown frequency is :

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